Improvement in gas heaters



C., H.. PRENTI'SS.

Gas-Heaters.

No. 136,383. y f Pafemdwlarchms.

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rrEn STATES PATEE'E OEEIGE.

CHARLES I-I. PRENTISS, OF CLEVELAND, OHIO.

IMPROVEMENT IN GAS HEATERS.

Specification forming part of Letters Patent No. 136,383, dated March 4, 1873.

To all ywhom 'it may concern:

Be it known that I, CHAnLEs H. PEENTIss, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new Like letters of reference refer to like parts in the several views.

The nature of this invention relates to a gas or vapor burner; and it consists in the construction and arrangement of parts, as hereinafter more fully described and pointed out byl the claim. l

Of the construction and operation of said burner the following is a more full ,and com'- plcte description: p n

In the drawing, Fig. 1A represents a tube leading from a fount or reservoir in which the liuid is held, and which may be more or less distant and elevated above the burner. To said tube is secured achamber, B, having in its upper end an outlet, O, of small size in comparison to the inlet D at the lower end. Said outlet opens into a small heating-chamber, E, from which is an outlet, F, leading to and .terminating in a jet-point, G, in which is fitted a screw-valve, H, for regulating the flow of vapor. Immediately above the jet is a tapering passage-way or funnel, I, into which the jet of vapor flows, and is thereby conducted to the hollow perforated head or shell J for being burned. K is a shell or cup, the purpose of which is to prevent the flame from spreading too much.

The practical operation of the burner is as follows: A fount or reservoircontainin g a duid from which the gas is to be generated is so placed in relation to the burner as to be elevated above it. The flow of the uid therefrom to the chamber B is regulated by a valve operated by a screw, L. rEhe pressure of the fluid, in consequence of the height of the fount, forces it into said chamber B, wherein it becomes heated and thereby vaporized. The vapor passes at once into the chamber E, in

which it becomes superheated, and in this conA dition it flows to and out of the jet-point G,

more or less in quantity, as the adjustment of the valve H will permit. The gas-jet flows f directly from the point into and through the wide mouth of the funnel I,'thence t'o and into the shell or burner J. In the passage of the vapor from the point G to the funnel a certain amount of oxygen is drawn in therewith, which is heated thereinv and thoroughly intermingled vwith the vapor, thereby perfecting it for burn ing.

In the ordinary gas-burner the flame is often flickering and not uniform in Volume; this is y mainly caused by a pulsation of the current of gas induced by a variable pressure. To avoid this fiiclrering of the flame, and to produce a steady and uniform one, is the purpose of the chamber B, which, in consequence of the large amount of vapor it contains, opposes an elastic resistance to the pulsating current, so that amore uniform jet is thereby produced, and, consequently, a steady and uniform flame. The shell or head J being of large capacity, and therefore holding a large volume of gas, it serves to check a direct escape of the gas through its perforations; hence it ows therefrom with 'less violence than if the holding capacity of the head were small, the result of which is that the jets burn without noise.

As aforesaid, the special purpose of this ap paratus is for culinary uses and for heating purposes. For these purposes the burner is supported in a frame for the convenience f holding the utensils over the flame in owhich the cooking, dto., is being conducted.

Claim.

,lVitnesse-s:

W. H. BURRrDGE, JOHN K. RoErNsoN. 

